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119 lines
3.4 KiB
JavaScript
119 lines
3.4 KiB
JavaScript
require(__dirname + "/test-helper");
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var Writer = require(__dirname + "/../../lib/writer");
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test('adding int32', function() {
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var testAddingInt32 = function(int, expectedBuffer) {
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test('writes ' + int, function() {
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var subject = new Writer();
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var result = subject.addInt32(int).join();
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assert.equalBuffers(result, expectedBuffer);
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})
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}
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testAddingInt32(0, [0, 0, 0, 0]);
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testAddingInt32(1, [0, 0, 0, 1]);
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testAddingInt32(256, [0, 0, 1, 0]);
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test('writes largest int32', function() {
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//todo need to find largest int32 when I have internet access
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return false;
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})
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test('writing multiple int32s', function() {
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var subject = new Writer();
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var result = subject.addInt32(1).addInt32(10).addInt32(0).join();
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assert.equalBuffers(result, [0, 0, 0, 1, 0, 0, 0, 0x0a, 0, 0, 0, 0]);
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})
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test('having to resize the buffer', function() {
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test('after resize correct result returned', function() {
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var subject = new Writer(10);
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subject.addInt32(1).addInt32(1).addInt32(1)
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assert.equalBuffers(subject.join(), [0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1])
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})
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})
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})
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test('int16', function() {
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test('writes 0', function() {
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var subject = new Writer();
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var result = subject.addInt16(0).join();
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assert.equalBuffers(result, [0,0]);
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})
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test('writes 400', function() {
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var subject = new Writer();
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var result = subject.addInt16(400).join();
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assert.equalBuffers(result, [1, 0x90])
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})
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test('writes many', function() {
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var subject = new Writer();
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var result = subject.addInt16(0).addInt16(1).addInt16(2).join();
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assert.equalBuffers(result, [0, 0, 0, 1, 0, 2])
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})
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test('resizes if internal buffer fills up', function() {
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var subject = new Writer(3);
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var result = subject.addInt16(2).addInt16(3).join();
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assert.equalBuffers(result, [0, 2, 0, 3])
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})
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})
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test('cString', function() {
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test('writes empty cstring', function() {
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var subject = new Writer();
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var result = subject.addCString().join();
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assert.equalBuffers(result, [0])
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})
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test('writes non-empty cstring', function() {
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var subject = new Writer();
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var result = subject.addCString("!!!").join();
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assert.equalBuffers(result, [33, 33, 33, 0]);
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})
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test('resizes if reached end', function() {
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var subject = new Writer(3);
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var result = subject.addCString("!!!").join();
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assert.equalBuffers(result, [33, 33, 33, 0]);
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})
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test('writes multiple cstrings', function() {
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var subject = new Writer();
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var result = subject.addCString("!").addCString("!").join();
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assert.equalBuffers(result, [33, 0, 33, 0]);
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})
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})
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test('writes char', function() {
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var subject = new Writer(2);
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var result = subject.addChar('a').addChar('b').addChar('c').join();
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assert.equalBuffers(result, [0x61, 0x62, 0x63])
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})
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test('gets correct byte length', function() {
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var subject = new Writer(5);
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assert.equal(subject.getByteLength(), 0)
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subject.addInt32(0)
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assert.equal(subject.getByteLength(), 4)
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subject.addCString("!")
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assert.equal(subject.getByteLength(), 6)
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})
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test('can add arbitrary buffer to the end', function() {
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var subject = new Writer(4);
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subject.addCString("!!!")
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var result = subject.add(Buffer("!!!")).join();
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assert.equalBuffers(result, [33, 33, 33, 0, 33, 33, 33]);
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})
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test('clearing', function() {
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var subject = new Writer();
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subject.addCString("@!!#!#");
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subject.addInt32(10401);
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subject.clear();
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assert.equalBuffers(subject.join(), []);
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})
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